Many patents are developed in response to the frustration involved in having to perform a repetitive task in order to complete a more important one. For John L. Love, this repetitive task was having to stop writing notes or letters in able to pull out his knife to whittle his pencil down to a point again.
On November 23, 1897, Love patented the pencil sharpener which called for a user to turn a crank and rotor off thin slices of wood from the pencil until a point was formed
Four years earlier, Love created and patented his Plasterer’s Hawk. This device, a flat square piece of board made of wood or metal, upon which plaster or mortar was placed and then spread by plasterers or masons. This device was patented on July 9, 1895.